Answers
Answer:
1. slope: (y2-y1)/(x2-x1)
(6,38), (9,32)
(32-38)/(9-6) = -6/3 = -2
38 = -2(6) + b
38 = -12 +b, b = 50
y = -2x + 50
2a. Slope = -80, the slope means how many cars left per hour after closing. Y- intercept = 600, cars in lot during closing.
2b. use the equation: y = -80x + 600
Plug in 3 into the equation
y = -80(3) + 600, y = -240 + 600, y = 360 cars
2c. For it to have 0 cars, plug in 0 for y
0 = -80x + 600
-600 = -80x, solve for x
x = 7.5 hours
Related Questions
In △ABD, DG=40 in.
What is the length of DF?
Enter your answer in the box.
Answers
Answer:
60. GF=20 so add those together
Step-by-step explanation:
Answer:60in
Step-by-step explanation:
The cost of a gym membership is a onetime joining fee of $140, plus a monthly fee of $40. Joe wrote a $500 check to pay his gym membership for a certain number of months, including the onetime fee. How many months of membership did he pay for?
Answers
c
a
=
$
10
m
+
$
15
The cost of membership at gym B can be written as:
c
b
=
$
4
m
+
$
40
Where
c
g
y
m
is the cost after
m
months.
To find when the cost is equal, equate the right side of both equations and solve for
m
:
$
10
m
+
$
15
=
$
4
m
+
$
40
Next, subtract
$
15
and
$
4
m
from each side of the equation to isolate the
m
term while keeping the equation balanced:
−
$
4
m
+
$
10
m
+
$
15
−
$
15
=
−
$
4
m
+
$
4
m
+
$
40
−
$
15
(
−
$
4
+
$
10
)
m
+
0
=
0
+
$
25
$
6
m
=
$
25
Now, divide each side of the equation by
$
6
to solve for
m
while keeping the equation balanced:
$
6
m
$
6
=
$
25
$
6
$
6
m
$
6
=
$
25
$
6
m
=
25
6
m
=
4.17
At 4 months the cost of the two gym memberships will be about the same.
Maria, Bill, and Eric have a total of $95 in their wallets. Maria has 10 less than Bill. Eric has 3 times what Bill has. How much does each have?
Plz help.
Answers
Answer:
[tex] \boxed{Maria \: got \: \$11} \\ \boxed{Bill \: has \: \$21} \\ \boxed{ Eric \: has \: \$63}[/tex]
Step-by-step explanation:
[tex]let \: maria \: be \to \: m \\ let \: eric \: be \to \: e \\let \: bill \: be \to \: b \\then : m =b - 10 \: and \: e = 3b \\ but : m + b + e = 95 \\ hence \to \: (b - 10) + b + (3b) = 95 \\ 2b - 10 + 3b = 95 \\ 5b = 95 + 10 \\ 5b = 105 \\ \boxed{b = 21} \\ m = b - 10 = 21 - 10 \\ \boxed{ m = 11} \\ e = 3b = 3(21) \\ \boxed{e= 63}[/tex]
♨Rage♨
If A is a square matrix of order 2, then det(-3A) is *
a. 3 det A
b. -3 det A
c. 9 det A
d. -9 det A
Help please.
Answers
Answer:
c. 9 det A
Step-by-step explanation:
Given the following data;
Since A is a square matrix of order 2, we know that n = 2
K = 3
For any scalar k;
∣kA∣ = k^{n} ∣A∣
Substituting into the equation;
∣-3A∣ = -3²∣A∣
Simplifying, we have;
∣-3A∣ = 9∣A∣
= 9 detA
Therefore, det (-3A) = 9 detA
Sally sold seashells by the seashore for 3 days for $2.45 per seashell. On the first day, she sold twice as many seashells as the second day, and on the second day, she sold four seashells less than she sold on the third day. If she sold 7 seashells on the third day, how much money did she make on those three days?
seashells less than she sold on the third day. If she sold 7 seashells on the third day, how
much money did she make on those thre
Answers
Step-by-step explanation:
1st day: 6 seashells, 14.7 dollars
2nd day: 3 seashells, 7.35 dollars
3rd day: 7 seashells, 17.15 dollars
All together: 39.2 dollars
day 3 = 7
day 2 = 7 - 4 = 3
day 1 = 3 * 2 = 6
total seas shells = 7 + 3 + 6 = 16
total money = 16 * 2.45 = $39.20
find the output when x = 6
Answers
Answer:
5
Step-by-step explanation:
the points is also given on graph
(6,5)
h(x) = 3x2 - 2x + 13
h(3)
[?]
Answers
Answer:
34
Step-by-step explanation:
h(x)=3x^2-2x+13
h(3)=3(3)^2-2(3)+13
h(3)=3(3)(3)-6+13
h(3)=3(9)-6+13
h(3)=27-6+13
h(3)=21+13
h(3)=34
Based on your measurements in question 1, what is the relationship between the diagonals of parallelogram ABCD
Answers
Answer:
Point E divides each diagonal in half. It is the midpoint of AC and BD . This means the two diagonals bisect each other at point E.
Step-by-step explanation:
PLATO
Answer:
Point E divides each diagonal in half. It is the midpoint of AC and BD . This means the two diagonals bisect each other at point E.
Step-by-step explanation:
edmentum
At a bakery, Victor makes 20 cupcakes. He puts them
in equal rows with 10 cupcakes in each row. Which
calculation can be used to find the number of rows of
cupcakes Victor makes?
A 20 x 10
B 20/10
C 20-10
D 20+10
Answers
Since she puts 10 in each row
Which calculation can be used to find the number of rows of
cupcakes Victor makes?you can use b and c
can someone tell me if I’m right or wrong
I got x=5,-5,i,-i on a calculator
But the answer choice has 1
Answers
For that particular polynomial your answer would be
x1=-5, x2=5
Answer:
B: [tex]-5, 5, i[/tex]
Step-by-step explanation:
The roots are [tex](x-5)(x+5)(x^{2}+1)[/tex] according to my TI-89 calculator.
3³ - (60 - 10) + 8
Answers
Answer:
According to the Google calculator, the answer is -15
Find the slope of each line passing through the given points using the slope formula.
(-3, -10) and (-1, -1) URGENT Please answer
Answers
Slope (m)= y\x= 9/2 = 4.5
your equation for the line is
y=4.5x+3.5
How to find probability of P(1)
Answers
Answer:
I need more context, can you take a screenshot of the actual question or something.
Step-by-step explanation:
The length of a rectangular dog run is 2 feet more than twice the width, w, and the perimeter of the dog run is 32 feet. Solve the equation
2w + 2(2w + 2) = 32 to find the width, w, of the dog run. Then find the length, 2w+2, of the dog run.
Answers
Answer:
The width is:
width = 4.7 feetThe length is:
length = 11.3 feetStep-by-step explanation:
Given the equation
[tex]2w\:+\:2\left(2w\:+\:2\right)\:=\:32[/tex]
[tex]2w+4w+4=32[/tex] ∵ [tex]a\left(b+c\right)=ab+ac[/tex]
Add similar elements: 2w+4w=6w
[tex]6w+4=32[/tex]
subtract 4 from both sides
[tex]6w+4-4=32-4[/tex]
[tex]6w=28[/tex]
Divide both sides by 6
[tex]\frac{6w}{6}=\frac{28}{6}[/tex]
[tex]w=\frac{14}{3}[/tex]
Hence, the width is:
[tex]w=\frac{14}{3}[/tex]
w = 4.7 feet
Therefore, the width is: 4.7 feet
As the length is:
2w+2 = 2(14/3)+2
= 28/3 + 2
= 34/3
= 11.3 feet
Therefore, the length is: 11.3 feet
SUMMARY:
The width is:
width = 4.7 feetThe length is:
length = 11.3 feetA triangle has vertices on a coordinate grid at P(-10,1)P(−10,1), Q(-10,-7)Q(−10,−7), and R(-5,-7).R(−5,−7). What is the length, in units, of \overline{PQ}
PQ
?
Answers
Answer:
Step-by-step explanation:
Given the following coordinates of a triangle
P(-10,1)
Q(-10,-7)
R(-5,-7)
Required
Length of PQ
PQ = √(y2-y1)²+(x2-x1)²
From the coordinate;
x1 = -10, y1 = 1, x2 = -10 y2 = -7
Substitute
PQ = √(-7-1)²+(-10-(-10))²
PQ = √(-8)²+0²
PQ = √64
PQ = 8units
Hence the length of PQ in units is 8units
There are 420 students . The ratio from girls to boys is 4- 3 . How many more girls?
Answers
Find the LCD of the two fractions 1/6 and 1/5
A. 6
B. 5
C. 30
D. 11
Answers
Answer:
C. 30 is the correct answer.
Step-by-step explanation:
Please help I really need help
Answers
Answer:
D
Step-by-step explanation:
integers are a whole number; a number that is not a fraction.
Help please
Will mark as brainliest!!!
Answers
Answer:
c
Step-by-step explanation:
i-Ready
Practice: Add and Subtract Rationals - Quiz - Level G
what number makes the equation true
Answers
Answer: the answer is -2 1/3
Step-by-step explanation: it would be -2 1/3 because 5 + 2=7 and then add the 1/3 to make -7 1/3
The number that makes the equation
[tex]\rm -5 +x = -7\dfrac{1}{3}[/tex] true is [tex]\rm \bold {-2\dfrac{1}{3} }[/tex].
So option 4 is correct.
Let the number that makes equation true is x
The question is that what makes equation true
[tex]\rm -5 +x = -7\dfrac{1}{3}[/tex]
This equation is a linear expression with one variable and rational numbers.
This equation can be solved in the following way
[tex]\rm -5 +x = -\dfrac{22}{3} \\x = 5 -\dfrac{22}{3} \\x = (15-22)/3 \\x = -7/3\\ x= -2\dfrac{1}{3}[/tex]
So from the given options in figure we can see that option 4 is correct
For more information please refer to the link given below
https://brainly.com/question/15815501
(x+0.5)^3 Expand the Equation using Pascal’s Triangle and the Binomial Theorem.
Answers
Answer: x^3 + 1.5x^2 + 0.75x + 0.125
Step-by-step explanation:
Use the binomial expansion theorem to find and simplify each term.
What is a density of an object that has a mass of 100g and a volume of 20cm3
Answers
Answer:
5g/cm^3
Step-by-step explanation:
DENSITY=mass/volume
=100/20
=5g/cm^3
So the density is 5g/cm^3
What is the range of the graphed function?
0-5
0-4 Sy < 0
oo sys 4
o {0,1,2,3,4}
Answers
Answer:
Step-by-step explanation:
y equels 4
Solve for the value of c.
Answers
Answer:
c = 11
Step-by-step explanation:
2c+8+6c-6 = 90 ( the angle measure of the two angles)
8c+2 = 90
8c = 88
c = 11
Richard invests $230.92 every month into his mortgage. At the end of 30 years, he has a balance of $184,033.06. What interest did he make over 30 years?
Answers
Richard made $100,719.46 in interest over 30 years on his mortgage.
To calculate the total interest Richard made over 30 years, we need to find the total amount he invested and then subtract that from the final balance.
Richard invests $230.92 every month for 30 years, which is a total of:
Total investment = 30 years * 12 months/year * $230.92/month
Total investment = $230.92 * 360
Total investment = $83,313.60
Now, we can calculate the interest earned by subtracting the total investment from the final balance:
Interest = Final balance - Total investment
Interest = $184,033.06 - $83,313.60
Interest = $100,719.46
Therefore, Richard made $100,719.46 in interest over 30 years on his mortgage.
To know more about interest:
https://brainly.com/question/30393144?
#SPJ2
You have $2,000 on a credit card that charges a 17% interest rate. If you want to pay off the credit card in 3 years, how much will you need to pay each month (assuming you don't charge anything new to the card)?
Answers
Answer:
Step-by-step explanation:
2000*17%=340
2000+340=2340
2340/4*12= 48.75
Tina earned $1.38 per day for two days as interest on her $1,000.00 investment. Select all the expressions you could use to find the percent interest she earned in total.
ALSO FREE 100 points
Answers
thx for the free points but i was looking for the answer
Answer: oooh why thank you
Step-by-step explanation:
A taxi ride costs $4 plus an additional $3 per mile. Write the equation for the line in slope-intercept form
Answers
Answer:
y=3x+4
Step-by-step explanation:
4 is your y-intercept, and 3 is your slope.
The linear function shows the total cost will be y = 3x + 4.
What is a linear function?A straight line on the coordinate plane is represented by a linear function.
A linear function always has the same and constant slope.
The formula for a linear function is f(x) = ax + b, where a and b are real values.
As per the given,
A taxi ride costs $4 plus an additional $3 per mile.
Let's say the number of miles is represented as x while the total cost is represented as y.
y = 3x + 4
Hence "The linear function shows the total cost will be y = 3x + 4".
For more about the linear function,
brainly.com/question/21107621
#SPJ2
Help stat please.Brainlist for the best ansmwer
Answers
(-9/8)x-7=-25
Multiply both sides by 8
-9x-56=-200
Move the constant to the right
-9x=-200+56
-9x=-144
-9x/-9=-144/9
x=16
3 folders cost $2.91 dollar sign . Which equation would help determine the cost of 2 folders? WRITE THE LETTER IN THE SPACE BELOW.
Answers
Answer:
$1.94
Step-by-step explanation:
Cost of 3 folders = $2.91
We need to find the cost of 2 folders.
First we will find the cost of 1 folder
1 folder = $2.91/3 = $0.97
To find the cost of 2 folders, multiply $0.97 and 2
2 folders = $0.97 × 2
= $1.94
Hence, the cost of 2 olders is $1.94.